Where: Kyrgyzstan (39.8° N, 72.0° E: paleocoordinates 3.6° N, 105.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dedebulak Formation, Botomian to Botomian (516.0 - 510.2 Ma)

• Specimens come from a block of Lower Cambrian limestone contained WITHIN the SILURIAN age Dedebulak Formation.

• formation-level stratigraphic resolution

Environment/lithology: lithified limestone

Preservation: original calcite, replaced with silica

Collection methods: chemical,

• This is one of the most representative collections of calcareous brachiopods (secondary silicification) known from the Botomian. The collection is housed in the museum of the F.N. Chernyshev Central Scientific Research Geologic Exploration Institute in Leningrad, as Collection No. 12589.

Primary reference: L. Y. Popov and Y. A. Tikhonov. 1990. Early Cambrian Brachiopods from Southern Kirgizia. Paleontological Journal 24(3):30-44 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9979: authorized by Mark Patzkowsky, entered by Phil Borkow on 05.02.2001

Creative Commons license: CC BY (attribution)